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PRELIMINARY SALIENT FEATURES OF UPPER TAMOR PROJECT
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1. General
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- Project Location : Taplejung district Tapethok/Linkhim/Ikhabu and Lelep VDCs,
- Zone : Mechi Zone
- Development region : Eastern Development Region
- Nearest highway : Mechi Highway
- Climate : Sub-tropical, Temperate & Alpine
- Average temperature: 18° C in April, -0.30 °C in February
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2. Hydrology
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- Catchment Area 1850 km2
- Annual mean flow 98 m3/s
- Maximum discharge 2085 m3/s
- Minimum discharge 8.09 m3/s
- Design discharge 105 m3/s (33.3 % exceedance probability)
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3. Project Components
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- Dam: Gravity type
- Undersluice : 12.5 m * 18 m (B*H) @ 5 Nos
- Headpond: Surface volume:733,09 m3, 2 hrs,storage time
- Settling Basin : 170 m long,23m wide 100 3chambered
- Headrace Tunnel: 8746m long
- Surge Tank: 58m height,20m diameter
- Penstockpipe: 4.7 m diameter
- Inclined Shaft 683 m long
- Power house: Semi underground
- Turbine: 83 MW Francis Turbines @ 5 Nos.
- Transmission line (Busantapur/Arun/Duhabi: 62 km /66km /145 km) (220 KV double circuit)
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4. Energy
- Gross Head: 490 m
- Installed capacity : 415 MW
- Average Annual Energy : 2117.6 GWh
- Firm Energy: 504.52 Gwh (From mid December to mid April)
- Secondary Energy : 1496.59 Gwh (From mid April to mid December)
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